XML 71 R59.htm IDEA: XBRL DOCUMENT v3.21.2
Long-Term Debt and Short-Term Borrowings - Long-Term Debt Maturities and Extinguishments (Details) - USD ($)
$ in Millions
1 Months Ended 3 Months Ended
Mar. 31, 2021
Jun. 30, 2021
Mar. 31, 2021
Dec. 31, 2020
Interest rate contracts        
Debt instrument        
Derivative notional amount   $ 650    
Fixed rate medium term note due 2022        
Debt instrument        
Interest rate, stated percentage (as a percent) 2.75%   2.75%  
Loss on early debt extinguishment $ 11   $ 11  
Debt redeemed $ 450      
Fixed rate registered note due 2049        
Debt instrument        
Principal amount   500   $ 1,000
Fixed rate registered note due 2050        
Debt instrument        
Principal amount   $ 150   $ 650
Seven-year floating rate note        
Debt instrument        
Variable rate   three-month LIBOR